The purpose of this bulletin is to remind masters, owners/operators, agents and persons-in-charge of vessels that the United States is not signatory to the International Convention for the Control and Management of Ship’s Ballast Water and Sediment (BWM Convention) and that vessels discharging ballast water (BW) into the waters of the U.S. must comply with the requirements of 33 CFR 151 Subparts C and D.

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